[LyX/master] InsetFootlike.cpp: disable listings inside footnotes

[Uwe Stöhr]

commit af8ba5e0696c0e1989effe4179c990a054bc06df
Author: Uwe Stöhr <uwesto...@lyx.org>
Date:   Tue Nov 4 23:44:10 2014 +0100

    InsetFootlike.cpp: disable listings inside footnotes
    
    fixes bug #9321

diff --git a/src/insets/InsetFootlike.cpp b/src/insets/InsetFootlike.cpp
index afd2329..05d2ba8 100644
--- a/src/insets/InsetFootlike.cpp
+++ b/src/insets/InsetFootlike.cpp
@@ -57,7 +57,8 @@ void InsetFootlike::write(ostream & os) const
 
 bool InsetFootlike::insetAllowed(InsetCode code) const
 {
-       if (code == FOOT_CODE || code == MARGIN_CODE || code == FLOAT_CODE)
+       if (code == FOOT_CODE || code == MARGIN_CODE || code == FLOAT_CODE
+               || code == LISTINGS_CODE)
                return false;
        return InsetCollapsable::insetAllowed(code);
 }